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Nautilus Treadmills

Official Nautilus treadmill parts

Nautilus treadmills are designed with the highest quality materials and state-of-the-art technology to ensure optimal performance, safety and ease of use. With features such as heart rate sensors, low step-up heights and Nautilus' signature SuperSoft walking belts, Nautilus treadmills are a top choice for both beginners and hardcore fitness enthusiasts. When your treadmill breaks down, find the Nautilus treadmill parts you need to fix the problem at Sears PartsDirect. We have the popular Nautilus T614 treadmill parts to fix any type of failure on that model. We also carry plenty of parts to fit other Nautilus treadmills.

Most common Nautilus treadmill parts that need replacing

  1. Control console. The treadmill console controls all the functions of your HealthRider treadmill. The console features a digital display for showing workout information and settings to the user.
  2. Drive motor. The treadmill drive motor rotates the drive belt, which spins the front belt roller to move the walking belt.
  3. Motor controller. The treadmill motor controller regulates the speed of the drive motor to move the walking belt at the desired pace.
  4. Reed switch. The treadmill reed switch detects the walking belt speed and sends speed signals to the console and controller.
  5. Walking belt. The treadmill walking belt rotates around the front and rear rollers and provides a moving surface to walk on.

How to fix your Nautilus treadmill when it won't power up

A failed power supply, broken power cord, tripped circuit breaker switch, failed circuit breaker switch, bad power switch, wiring failure, bad motor control board or failed console display can prevent your treadmill from powering up.

  1. Make sure the electrical outlet the treadmill is plugged into has power by plugging a lamp or small appliance into the outlet to see if it works. If the outlet is dead, reset the house circuit breaker to restore power to the outlet. If the outlet still doesn’t work, plug the treadmill into a different outlet and have an electrician repair the broken electrical outlet.
  2. If the electrical outlet works, unplug the treadmill and check the power cord for damage. Replace the power cord if it’s damaged.
  3. If the power cord is okay, check the circuit breaker switch on the treadmill and reset the circuit breaker switch if it’s tripped.
  4. If the circuit breaker switch isn’t tripped or the treadmill won’t power up after resetting the circuit breaker switch, use a multimeter to check for continuity through the circuit breaker switch (with the treadmill unplugged). Replace the circuit breaker switch if the meter measures no continuity.
  5. If the meter measures continuity through the circuit breaker switch, check the power switch for continuity (with the treadmill still unplugged). Replace the power switch if the meter measures no continuity through the power switch with the power switch turned on.
  6. If the power switch is okay, check all wires between the power cord connection and the motor control board. Reconnect any loose wires and repair any broken wires.
  7. If wiring that connects power to the motor control board is okay, check the wiring between the motor control board and the console display. Replace any loose wires and repair any broken wires.
  8. If wires between the motor control board and the display control board are okay, then a bad motor control board or a failed console display could be preventing the treadmill from powering up.

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